Now showing items 481-500 of 777

    • Pantalla multitáctil portátil de bajo coste 

      Re, Armando de la; Abad, Francisco; Camahort, Emilio; Lluch, Javier (The Eurographics Association, 2009)
      La tecnología multitáctil ha comenzado a introducirse en nuestra vida cotidiana, impulsada principalmente por los smartphones. Algunas compañías han lanzado al mercado pantallas de ordenador multitáctiles, presentando ...
    • Path Tracing on Massively Parallel Neuromorphic Hardware 

      Richmond, Paul; Allerton, David J. (The Eurographics Association, 2012)
      Ray tracing on parallel hardware has recently benefit from significant advances in the graphics hardware and associated software tools. Despite this, the SIMD nature of graphics card architectures is only able to perform ...
    • Pattern Recognition in Cytopathology for Papanicolaou Screening 

      Blackledge, Jonathan; Dubovitskiy, D. A. (The Eurographics Association, 2010)
      A unique space oriented filer is presented in order to detect and isolate the cell of a nucleus for applications in cytopathology. A classification method for nuclei is then considered based on the application of a set of ...
    • Patterns of Creativity in Design 

      Bilotta, E.; Pantano, P. (The Eurographics Association, 2007)
      One of the most remarkable features of the human mind is its creativity. During the course of this talk we shall be presenting some examples of the creative use of scientific models such as Chua's attractors and Cellular ...
    • PED: Pedestrian Environment Designer 

      McIlveen, James; Maddock, Steve; Heywood, Peter; Richmond, Paul (The Eurographics Association, 2016)
      Pedestrian simulations have many uses, from pedestrian planning for architecture design through to games and entertainment. However, it is still challenging to efficiently author such simulations, especially for non-technical ...
    • Perceived Quality of Simplified Polygonal Meshes: Evaluation using Observer Studies 

      Silva, Samuel; Ferreira, Carlos; Madeira, Joaquim; Santos, Beatriz Sousa (The Eurographics Association, 2006)
      The complexity of a polygonal mesh model is usually reduced by applying a simplification method, resulting in a similar mesh having less vertices and faces. Although several such methods have been developed, it is not yet ...
    • Perceived Rendering Thresholds for High-Fidelity Graphics on Small Screen Devices 

      Aranha, M.; Debattista, K.; Chalmers, A.; Hill, S. (The Eurographics Association, 2006)
      Small screen devices, also known as small-form-factor (SFF) devices including mobile phones and ultra mobile PCs are increasingly ubiquitous. Their uses includes gaming, navigation and interactive visualisation. SFF devices ...
    • Perception of Clones in Forest Rendering 

      Purvis, Alan; Sundstedt, Veronica (The Eurographics Association, 2010)
      The application of instanced clones represents a powerful technique for reducing the time and space requirements of the storage and visualization of large populations of similar objects. This paper presents the results of ...
    • Perception-based Lighting Design 

      Ha, Hai Nam; Olivier, Patrick (The Eurographics Association, 2006)
      Perception-based lighting design approaches model image quality using a cognitively grounded objective function which is in turn optimised through manipulation of the lighting parameters of a scene. We present, and ...
    • Perception-Based Lighting-by-Example 

      Ha, Hai Nam; Olivier, Patrick (The Eurographics Association, 2007)
      In computer graphics, easy-to-use tools for configuring lighting for 3D scenes are required by users. Following a perception-based lighting design framework, which models image quality using cognitively inspired objective ...
    • Perception-based painterly rendering: functionality and interface design 

      Nunes, Samuel; Almeida, Daniel; Brito, Vera; Carvalho, Joao; Rodrigues, Joao; Buf, J. M. Hans du (The Eurographics Association, 2006)
      Painterly rendering (non-photorealistic rendering or NPR) aims at translating photographs into paintings with discrete brush strokes, simulating certain techniques (im- or expressionism) and media (oil or watercolour). ...
    • Perceptual Level of Detail for Efficient Ray Tracing of Complex Scenes 

      Yang, X.; Chalmers, A. (The Eurographics Association, 2005)
      Rendering complex scenes in real time remains one of the major challenges in computer graphics. Recent research in perceptual rendering algorithms and level of detail techniques have shown that, by exploiting knowledge of ...
    • Perceptually-Oriented Interest Management In Large-Scale Networked Virtual Environments 

      Dunwell, I.; Whelan, J. C. (The Eurographics Association, 2005)
      Amongst the most significant challenges in developing large-scale multi-user virtual environments is the efficient filtering of data to each user - a process commonly described as "interest management". This work-in-progress ...
    • Perfect Spatial Hashing for Point-cloud-to-mesh Registration 

      Mejia-Parra, Daniel; Lalinde-Pulido, Juan; Sánchez, Jairo R.; Ruiz-Salguero, Oscar; Posada, Jorge (The Eurographics Association, 2019)
      Point-cloud-to-mesh registration estimates a rigid transformation that minimizes the distance between a point sample of a surface and a reference mesh of such a surface, both lying in different coordinate systems. ...
    • Perimeter Detection in Sketched Drawings of Polyhedral Shapes 

      Company, Pedro; Varley, Peter A. C.; Plumed, Raquel (The Eurographics Association, 2017)
      This paper describes a new "envelope" approach for detecting object perimeters in line-drawings vectorised from sketches of polyhedral objects. Existing approaches for extracting contours from digital images are unsuitable ...
    • Perlin Noise and 2D Second-Order Tensor Field Visualization 

      Liu, J.; Perrin, J.; Turner, M.; Hewitt, W. T. (The Eurographics Association, 2005)
      There has been much research in the use of texture for visulization the vector field data, whereas there has only been a few papers concerned specifically with tensor field data. This set is more complex and embeds more ...
    • Persistent Homology: a Step-by-step Introduction for Newcomers 

      Fugacci, Ulderico; Scaramuccia, Sara; Iuricich, Federico; Floriani, Leila De (The Eurographics Association, 2016)
      Persistent homology is a powerful notion rooted in topological data analysis which allows for retrieving the essential topological features of an object. The attention on persistent homology is constantly growing in a large ...
    • Phase Space Data-Driven Simulation of Elastic Materials 

      Monteagudo, Carlos; Lozano, Miguel; García-Fernández, Ignacio; Martinez-Gil, Francisco (The Eurographics Association, 2016)
      The use of data driven models in computer animation offers several benefits. We present an analysis of a regression model as a method to simulate cloth. In our approach, we generate data from a simple mass-spring system ...
    • Physical and Perceptual Limitations of a Projector-based High Dynamic Range Display 

      Wanat, Robert; Petit, Josselin; Mantiuk, Rafal (The Eurographics Association, 2012)
      High dynamic range (HDR) displays capable of reproducing scenes of high luminance (exceeding 2,000 cd/m2) and contrast (more than 10,000:1) are a useful tool for research on visual performance, image quality or colour ...
    • A Physical Model for the Polarized Scattering of Light 

      Brayford, David; Turner, Martin; Hewitt, W. T. (The Eurographics Association, 2008)
      The change in polarization state due to the interaction of light with the surface and beneath the surface of an object has become increasingly important in realistic image synthesis of materials such as metallic, iridescent ...